Lab8_Quiz

How do you declare a one-dimensional array in C#?

• int array[];

• int[] array;

• array int[];

• int array();

If an array is declared as int[] arr = new int[5];, what will arr.Length return?

• 4

• 6

• 5

• 0

What is the index of the first element in a single-dimensional array in C#?

• 0

• 1

• -1

• Depends on the array

What is the default value of an integer array element in C#?

• 1

• 0

• null

• Empty

What keyword is used to create an array in C#?

• array

• new

• create

• declare

What will the following code output?

int[] arr = { 5, 10, 15, 20 };

Console.WriteLine(arr[2]);

• 5

• 10

• 15

• 20

How can you initialize an array with values?

• int[] arr = {1, 2, 3};

• int arr[] = {1, 2, 3};

• int[] arr =

  new int[3] [1, 2, 3];

• int[] arr =

  new int[3] (1, 2, 3);

What is a multi-dimensional array?

• An array containing different data types

• An array with more than one dimension

• An array with a single dimension

• None

Which method can be used to get the length of the second dimension in a 2D array?

• array.Length(2)

• array.GetLength(1)

• array.DimensionLength(1)

• array.Size(2)

What will int[,] array = new int[3, 2]; create?

• A one-dimensional array with 3 elements

• A two-dimensional array with 6 elements

• A three-dimensional array

• A syntax error